Nest 2024 Thermostat Wire Diagram. Learn how to identify a thermostat wire. Find out how to properly wire a nest thermostat with only 3 wires using a detailed wiring diagram.
Use our interactive tool to tell if your system is compatible, and which nest thermostat models work with your system. The nest gen 3 thermostat comes with a comprehensive wiring diagram that clearly outlines where each wire should be connected.